From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick Lai <plai@codeaurora.org>
Subject: Signaling user-space through kcontrol
Date: Tue, 27 Sep 2011 23:14:36 -0700
Message-ID: <4E82BB4C.1030801@codeaurora.org>
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To: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: alsa-devel <alsa-devel@alsa-project.org>, Liam Girdwood <lrg@ti.com>
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Hi Mark,

The codec I am working on, beside headset detection, also have other
type of events to be propagated to user space. Per our discussion at
IPC, there is way to signal user-space through kcontrol. Is it through 
calling snd_ctl_notify()? What is the ALSA library API to intercept the 
event? Is there an sample user-space code which gets kcontrol event?

Thanks
Patrick

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